BS EN 61058-2-6:2016 BSI Standards Publication Switches for appliances Part 2-6: Particular requirements for switches used in electric motor-operated hand-held tools, transportable tools and lawn and garden machinery BRITISH STANDARD BS EN 61058-2-6:2016 National foreword This British Standard is the UK implementation of EN 61058-2-6:2016 It is identical to IEC 61058-2-6:2016 The UK participation in its preparation was entrusted to Technical Committee PEL/23, Electrical accessories A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © The British Standards Institution 2016 Published by BSI Standards Limited 2016 ISBN 978 580 89969 ICS 29.120.40 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2016 Amendments/corrigenda issued since publication Date Text affected BS EN 61058-2-6:2016 EUROPEAN STANDARD EN 61058-2-6 NORME EUROPÉENNE EUROPÄISCHE NORM October 2016 ICS 29.120.40 English Version Switches for appliances - Part 2-6: Particular requirements for switches used in electric motor-operated hand-held tools, transportable tools and lawn and garden machinery (IEC 61058-2-6:2016) Interrupteurs pour appareils - Partie 2-6: Exigences particulières pour les interrupteurs utilisés sur les outils électroportatifs moteur, les outils portables et les machines pour jardins et pelouses (IEC 61058-2-6:2016) Geräteschalter - Teil 2-6: Besondere Anforderungen für Schalter zur Anwendung in elektromotorisch betätigten handgeführten Werkzeugen, transportablen Werkzeugen und Rasen- und Gartenmaschinen (IEC 61058-2-6:2016) This European Standard was approved by CENELEC on 2016-07-20 CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels © 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members Ref No EN 61058-2-6:2016 E BS EN 61058-2-6:2016 EN 61058-2-6:2016 European foreword The text of document 23J/402/FDIS, future edition of IEC 61058-2-6, prepared by SC 23J “Switches for appliances” of IEC/TC 23 “Electrical accessories” was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61058-2-6:2016 The following dates are fixed: • latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2017-04-21 • latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2019-10-21 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights Endorsement notice The text of the International Standard IEC 61058-2-6:2016 was approved by CENELEC as a European Standard without any modification The Bibliography EN 61058-1:2002 applies, except as follows: In the Bibliography of EN 61058-1:2002, the following notes have to be added for the standards indicated: 1) 1) IEC 60745-1 NOTE Harmonized as EN 60745-1 IEC 62841-1 NOTE Harmonized as EN 62841-1 The latest edition is superseded by EN 62841-1:2015 BS EN 61058-2-6:2016 EN 61058-2-6:2016 Annex ZA (normative) Normative references to international publications with their corresponding European publications Annex ZB of EN 61058-1:2002 applies –2– BS EN 61058-2-6:2016 IEC 61058-2-6:2016 © IEC 2016 CONTENTS FOREWORD Scope Normative references Definitions .5 General requirements 5 General notes on tests Rating Classification Marking and documentation Protection against electric shock 10 Provision for earthing 11 Terminals and terminations 12 Construction 13 Mechanism 14 Protection against solid objects, ingress of water and humid conditions 15 Insulation resistance and dielectric strength 16 Heating 10 17 Endurance 10 18 Mechanical strength 14 19 Screws, current-carrying parts and connections 14 20 Clearances, creepage distances, solid insulation and coatings of rigid printed board assemblies 14 21 Fire hazard 14 22 Resistance to rusting 15 23 Abnormal operation and fault conditions for electronic switches 15 24 Components for electronic switches 16 25 EMC requirements 16 Annexes 17 Annex F (informative) Switch application guide 17 Annex H (informative) Flat quick-connect terminations, method for selection of female connectors 17 Annex N (normative) Altitude correction factors 17 Annex U (normative) Dimensions of tabs forming part of a switch 17 Annex V (informative) Requirements and tests for resistance to abnormal heat for unattended appliances 17 Bibliography 18 Table – Switch information Table 17 – Test loads for electrical endurance tests for a.c circuits 12 Table 18 – Test loads for electrical endurance tests for d.c circuits 12 BS EN 61058-2-6:2016 IEC 61058-2-6:2016 © IEC 2016 –3– INTERNATIONAL ELECTROTECHNICAL COMMISSION SWITCHES FOR APPLIANCES – Part 2-6: Particular requirements for switches used in electric motor-operated hand-held tools, transportable tools and lawn and garden machinery FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees) The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”) Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work International, governmental and nongovernmental organizations liaising with the IEC also participate in this preparation IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter 5) IEC itself does not provide any attestation of conformity Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity IEC is not responsible for any services carried out by independent certification bodies 6) All users should ensure that they have the latest edition of this publication 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications 8) Attention is drawn to the Normative references cited in this publication Use of the referenced publications is indispensable for the correct application of this publication 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights IEC shall not be held responsible for identifying any or all such patent rights International Standard IEC 61058-2-6 has been prepared by subcommittee 23J: Switches for appliances, of IEC technical committee 23: Electrical accessories The text of this standard is based on the following documents: FDIS Report on voting 23J/402/FDIS 23J/406/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table This publication has been drafted in accordance with the ISO/IEC Directives, Part –4– BS EN 61058-2-6:2016 IEC 61058-2-6:2016 © IEC 2016 This Part 2-6 is to be used in conjunction with IEC 61058-1:2000, Switches for appliances – Part 1: General requirements, and its Amendments (2001) and (2007) This Part 2-6 supplements or modifies the corresponding clauses in IEC 61058-1, so as to convert that publication into the IEC standard: Particular requirements for switches used in electric motor-operated hand-held tools, transportable tools and lawn and garden machinery When a particular subclause of Part is not mentioned in this Part 2-6, that subclause applies as far as reasonable Where this standard states “addition”, “modification” or “replacement”, the relevant text of Part is to be adapted accordingly In this standard: 1) the following print types are used: • requirements proper: in roman type; • test specifications: in italic type; • notes: in small roman type 2) subclauses, notes, figures and tables which are additional to those in Part are numbered starting from 101 Annexes which are additional to those in Part are lettered AA, BB, etc A list of all the parts in the IEC 61058 series, under the general title Switches for appliances, can be found on the IEC website The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to the specific publication At this date, the publication will be • reconfirmed, • withdrawn, • replaced by a revised edition, or • amended BS EN 61058-2-6:2016 IEC 61058-2-6:2016 © IEC 2016 –5– SWITCHES FOR APPLIANCES – Part 2-6: Particular requirements for switches used in electric motor-operated hand-held tools, transportable tools and lawn and garden machinery Scope This clause of Part is applicable, except as follows: 1.1 Addition: This standard is a subset based on IEC 61058-1 The clauses outlined below are intended to address the specific requirements for switches incorporated into or integrated with electric motor-operated hand-held tools, transportable tools and lawn and garden machinery This standard is intended for switches with an ambient temperature up to and including 55 °C Switches tested to IEC 61058-1 are considered to comply with this standard and additional testing is not required provided ratings, loads, and endurance are correct NOTE This Part 2-6 takes into account the fact that tests are conducted as part of the end product evaluation (e.g products tested according to the IEC 60745 and IEC 62841 series, and lawn and gardening equipment tested according to the IEC 60335 series) and need not be conducted on the component switch Normative references This clause of Part is applicable Definitions This clause of Part is applicable General requirements This clause of Part is applicable General notes on tests This clause of Part is applicable Rating This clause of Part is applicable Classification This clause of Part is applicable, except as follows: –6– 7.1.3.2 This subclause is not applicable 7.1.3.3 This subclause is not applicable 7.1.5.3.1 This subclause is not applicable 7.1.5.3.2 This subclause is not applicable BS EN 61058-2-6:2016 IEC 61058-2-6:2016 © IEC 2016 Marking and documentation This clause of Part is applicable, except as follows: 8.1 Addition: Switches declared for use in appliances such as power tools are considered unique type (U.T) when referencing Table Replacement of Table 3: Table – Switch information Characteristic Means of information SWITCH IDENTIFICATION − UNIQUE TYPE REFERENCE U.T Manufacturer's name or trade mark Marking (Ma) Type reference (model or catalogue number) Marking (Ma) Identification that the switch is in compliance with this Part 2-6 (8.101) Marking (Ma) Type of appliance for which a switch shall be used (hand held tools, transportable tools, or lawn and garden machinery) Documentation (Do) Number of operating cycles (7.1.4) Documentation (Do) Degree of protection against electric shock, from outside an appliance (7.1.5.3) Documentation (Do) Number of contact only cycles (TC for electronic switches) (17.2.4.7) Documentation (Do) For electronic switches, the duty-type S1 (7.1.16) Documentation (Do) Addition: 8.101 The marking to indicate compliance with this Part 2-6 shall be "PT" Compliance is checked by inspection Protection against electric shock This clause of Part is applicable, except as follows: 9.1 NOTE 9.2 NOTE This subclause is not applicable This subclause is covered in the end product standard This subclause is not applicable This subclause is covered in the end product standard BS EN 61058-2-6:2016 IEC 61058-2-6:2016 © IEC 2016 –7– 10 Provision for earthing This clause of Part is not applicable 11 Terminals and terminations This clause of Part is applicable, except as follows: 11.1.1.2 NOTE This subclause is not applicable This subclause is covered in the end product standard 11.1.1.3 NOTE This subclause is not applicable except Table This subclause is covered in the end product standard 11.1.1.4 NOTE This subclause is not applicable This subclause is covered in the end product standard 11.1.1.5 This subclause is not applicable 11.1.1.6 Replacement: Terminals shall be designed so that the end of a conductor introduced into the hole is visible or that the insertion of the conductor is prevented by a stop if further insertion may reduce creepage distances and/or clearances or influence the mechanism of the switch Compliance is checked by inspection 11.1.2 Screw-type terminals for unprepared conductors Addition: Screw type terminals for unprepared conductors are permitted but tested as part of the end product evaluation 11.1.2.1 This subclause is not applicable 11.1.2.2 This subclause is not applicable 11.1.2.3 This subclause is not applicable 11.1.3.1 Replacement: Screwless terminals shall allow, according to their classification, the proper connection of conductors having cross-sectional areas as declared The intended disconnection of a conductor shall require an operation other than a pull at the conductor, such that it can be effected manually with or without the help of a tool in normal use 11.1.3.2 Replacement: Screwless terminals shall withstand the mechanical stress occurring in normal use The conductor shall be clamped reliably and between metal surfaces, except that, for screwless –8– BS EN 61058-2-6:2016 IEC 61058-2-6:2016 © IEC 2016 terminals intended to be used in circuits carrying a current not exceeding 0,2 A, one of the surfaces may be non-metallic Compliance is checked by the following test, which is carried out with uninsulated copper conductors, first having the largest declared cross-sectional area, and then having the smallest declared cross-sectional area: a) either rigid: five insertions and disconnections for solid conductors and one insertion and disconnection for stranded conductors; or b) flexible: five insertions and disconnections; or c) rigid and flexible: if the terminal can accept both types of conductors, the tests are carried out with rigid and flexible conductors for the number of times indicated above The conductors are inserted and disconnected for the number of times indicated above using new conductors each time, except for the last time, when the conductors used for the last but one insertion are clamped at the same place For each insertion, the conductors shall be either pushed as far as possible into the terminal or shall be inserted to ensure that the connection is adequate After each insertion, the conductor is twisted through 90° in an axial direction and then subjected to a pull force of 35 N; the pull force is applied without jerks, for min, in the direction of the axis of the conductor space If the terminal is declared as suitable for two or more conductors, the appropriate pull force is applied consecutively to each conductor During the application of the pull force, the conductor shall not come out of the terminal After these tests, neither the screwless terminals nor the clamping means shall have become loose 11.1.3.4 11.2 This subclause of Part is not applicable Terminals for prepared copper conductors and/or terminals requiring the use of a special purpose tool This subclause of Part is applicable, except as follows: 11.2.1 Common requirements This subclause is not applicable 11.2.3.2 11.2.4 This subclause is not applicable Non-disconnectable screwless terminations Addition: Non-disconnectable screwless terminations are permitted but tested as part of the end product evaluation 11.2.4.1 This subclause is not applicable 11.2.4.2 This subclause is not applicable 11.2.4.3 This subclause is not applicable 11.2.5.1 This subclause is not applicable 11.2.5.2 This subclause is not applicable BS EN 61058-2-6:2016 IEC 61058-2-6:2016 © IEC 2016 11.2.5.3 –9– Replacement: Tabs shall allow the application and withdrawal of female connectors without damage to the switch so as not to impair compliance with this standard Compliance is checked by applying a 10 N axial pull force without jerks No damage or disengagement shall occur 11.2.5.4 11.2.7 This subclause is not applicable Solder terminations Addition: Solder terminations are permitted but tested as part of the end product evaluation 11.2.7.1 This subclause is not applicable 11.2.7.2 This subclause is not applicable 11.2.7.3 This subclause is not applicable 12 Construction This clause of Part is not applicable NOTE This clause is covered in the end product standard 13 Mechanism This clause of Part is not applicable NOTE This clause is covered in the end product standard 14 Protection against solid objects, ingress of water and humid conditions This clause of Part is applicable, except as follows: 14.3 Protection against humid conditions Replacement of the second paragraph: Compliance is checked by the humidity treatment described in 14.3, followed by the test of 15.1 Cable inlet openings, if any, and drain-holes are left open If a drain-hole is provided for a water-tight switch, it is opened 15 Insulation resistance and dielectric strength This clause of Part is applicable, except as follows: 15.1 Replacement: The dielectric strength of switches shall be adequate – 10 – BS EN 61058-2-6:2016 IEC 61058-2-6:2016 © IEC 2016 Compliance is checked by the test of 15.3, the test being made immediately after the test of 14.3 The test voltage according to Table 12 is applied in the case of • functional insulation: between the different poles of a switch For the purpose of the test, all the parts of each pole are connected together; • basic insulation: between all live parts connected together and a metal foil covering the outer accessible surface of the basic insulation and accessible metal parts in contact with the basic insulation; • double insulation: between all live parts connected together and a metal foil covering the outer, normally not accessible surface of basic insulation and non-accessible metal parts; then: between two metal foils covering separately the inner, normally not accessible surface of supplementary insulation and connected to non-accessible metal parts, and the outer, accessible surface of supplementary insulation and connected to accessible metal parts; • reinforced insulation: between all live parts connected together and a metal foil covering the outer accessible surface of reinforced insulation and accessible metal parts; • contacts: between the open contacts of each pole of a switch at the test voltages for “across electronic disconnection” The foils are not pressed into openings but are pushed into corners and the like by means of the standard test finger In cases where basic insulation and supplementary insulation cannot be tested separately, the insulation provided is subjected to the test voltages specified for reinforced insulation For electronic switches, the test is carried out at the test voltages for “across full disconnection” and “across micro-disconnection” only on electronic switches with mechanical switching devices connected in series with the semiconductor switching device For electronic switches, the tests are not carried out across protective impedances and poles interconnected by components 15.2 This subclause is not applicable 16 Heating This clause of Part is not applicable NOTE This clause is covered in the end product standard 17 Endurance This clause of Part is applicable, except as follows: 17.1.2 Replacement: The sequence of tests for all switches except electronic switches is as follows: • when declared for locked rotor, a test at accelerated speed as specified in 17.2.4.9 (TC9); • a test at accelerated speed as specified in 17.2.4.4 (TC4); • a functional compliance test in accordance with 17.2.5.1 (TE1); • a dielectric strength test in accordance with 17.2.5.3 (TE3) BS EN 61058-2-6:2016 IEC 61058-2-6:2016 © IEC 2016 17.1.3 – 11 – Replacement: For electronic switches (complete switch) the sequence of tests is as follows: • a test at accelerated speed as specified in 17.2.4.4 (TC4); • when declared for locked rotor, a test at accelerated speed as specified in 17.2.4.9 (TC9); • a functional compliance test in accordance with 17.2.5.1 (TE1); • a dielectric strength test in accordance with 17.2.5.3 (TE3) Additionally new specimens shall be prepared and tested as follows: • the SSD (solid state switching device and assembly) in series with contact(s) is short circuited and/or the SSD in parallel with contact(s) is disconnected; • a test at accelerated speed as specified in 17.2.4.7 (TC7) The number of operating cycles is 000 or the declared number (if different) 17.1.4 Replacement: After all the tests specified, the specimens shall meet the requirements of 17.2.5.1 (TE1) and 17.2.5.3 (TE3) 17.2.1.2 This subclause is applicable, except as follows: Replacement of Table 17 and Table 18: BS EN 61058-2-6:2016 IEC 61058-2-6:2016 © IEC 2016 – 12 – Table 17 – Test loads for electrical endurance tests for a.c circuits Type of circuit as classified in 7.1.2 Operation of contacts Motor-operated tools and motoroperated lawn and garden machinery Making 2) Breaking Magnetically driven tools and magnetically driven lawn and garden machinery; also acceptable for motor-operated tools and motor-operated lawn and garden machinery Test current r.m.s 1) Power factor 3) × I-M 0,60 (+0,05) or or I-R ≥ 0,9 I-R ≥ 0,9 or or I-M ≥ 0,9 4) Rated voltage Rated voltage 2) Rated voltage × I-I 0,60 (+0,05) Breaking Rated voltage I-I 0,60 (+0,05) Making Declared specific load (classified in 7.1.2.5) Test voltage Making and breaking As determined by load NOTE I-I: inductive-load current I-M: motor-load current I-R: resistive-load current 1) Whichever is arithmetically greater or the most unfavourable value in case of equal values 2) The specified making conditions are maintained for a period between 50 ms and 100 ms, and are then reduced by an auxiliary switch to the specified breaking conditions For all switches except electronic switches the test current may be reduced to I-R by introducing a resistor in the circuit Short interruptions of the test current during the reduction to I-R not exceeding a period of 50 ms to 100 ms are permitted For electronic switches, the reduction to the break current should be achieved without any open circuiting of the simulated inductive loads circuit, to ensure that no abnormal voltage transients are generated A typical method of achieving this is shown in Figure 19 3) Resistors and inductors are not connected in parallel except that if any air-core inductor is used, a resistor taking approximately % of the current through the inductor is connected in parallel with it Iron-core inductors may be used provided that the current has a substantial sine-wave form For three-phase tests, three-core inductors are used 4) The test circuit condition for testing electronic switches, according to Figure 18, shall be substantially resistive Table 18 – Test loads for electrical endurance tests for d.c circuits Type of circuit as classified in 7.1.2 Operation of contacts Test voltage Declared specific load (classified in 7.1.2.5) Making and breaking Rated voltage 17.2.2 Test current Time constant As determined by load Thermal conditions This subclause is not applicable 17.2.3.1 Replacement: The switches are operated by means of their actuating member either manually or by an appropriate apparatus which is arranged to simulate normal actuation BS EN 61058-2-6:2016 IEC 61058-2-6:2016 © IEC 2016 – 13 – The operating speed for the operating cycles shall be as follows: • for linear actions, the switch actuation speed shall be approximately 80 mm/s (mechanical) and 25 mm/s (electronic); • for rotary actions, the switch actuation speed shall be approximately 90°/s (mechanical) and 45°/s (electronic) 17.2.3.3 This subclause is not applicable 17.2.4.1 Increased-voltage test at accelerated speed (TC1) This subclause is not applicable 17.2.4.2 Test at slow speed (TC2) This subclause is not applicable 17.2.4.3 Test at high speed (TC3) This subclause is not applicable 17.2.4.4 Test at accelerated speed (TC4) Replacement: The electrical conditions are those specified in 17.2.1 The thermal conditions are as follows: Tests are carried out at 25 °C ± 10 °C The total number of operations shall be declared by the manufacturer NOTE Typically the total number of operations is 50 000 for hand-held tools, 10 000 for transportable tools and 10 000 for lawn and garden machinery The method of operation is that specified for accelerated speed in 17.2.3 17.2.4.5 Manual functional test (TC5) This subclause is not applicable 17.2.4.6 Functional test at minimum load (TC6) This subclause is not applicable 17.2.4.7 Test with limited number of operations (TC7) Replacement: The electrical conditions are those specified in 17.2.1 The thermal conditions are 25 °C ± 10 °C The number of operating cycles is 000 or greater as declared by the manufacturer The method of operation is that specified in 17.2.3 for accelerated speed – 14 – 17.2.4.8 BS EN 61058-2-6:2016 IEC 61058-2-6:2016 © IEC 2016 Endurance test (TC8) This subclause is not applicable 17.2.4.10 Test at very slow speed (TC10) This subclause is not applicable 17.2.5 Evaluation of compliance This subclause is applicable, except as follows: 17.2.5.2 Thermal compliance (TE2) This subclause is not applicable 18 Mechanical strength This clause of Part is not applicable NOTE This clause is covered in the end product standard 19 Screws, current-carrying parts and connections This clause of Part is applicable 20 Clearances, creepage distances, solid insulation and coatings of rigid printed board assemblies This clause of Part is applicable 21 Fire hazard This clause of Part is applicable, except as follows: 21.1 Resistance to heat Replacement: Parts of non-metallic material shall be resistant to heat This requirement does not apply to small parts, to decorative trims, actuators which are not integral with the actuating means, and other parts for which no tests are required NOTE The definition for small parts is given in 3.15 of IEC 60695-2-11 Compliance is checked with new samples using the ball pressure test according to IEC 60695-10-2 at the following temperatures: a) at 75 °C ± °C: for parts which are accessible when the switch is mounted as declared, and the deterioration of which may result in the switch becoming unsafe (e.g reduction in the declared degree of protection, or reduction of creepage and clearances below those values required according to Clause 20); b) at 125 °C ± °C: BS EN 61058-2-6:2016 IEC 61058-2-6:2016 © IEC 2016 – 15 – – for parts which are in contact with, maintain or retain in position electrical connections including those parts which maintain an electrical connection under spring force, for example a connection within the switch maintained in position by a spring in association with a non-metallic part, the deterioration of which could cause overheating; – for parts which are in contact with or support heat-sources (for example, heat sinks) 21.2 Resistance to abnormal heat Replacement: Parts of non-metallic material shall be resistant to abnormal heat For decorative trims, actuating members which are not integral with the actuating means, and parts which are unlikely to be ignited or to propagate flames, no test is required In cases where it is neither practical nor possible to carry out the tests on a complete switch, for example, when the switch is either too small or of an inconvenient shape, then the test is carried out using a specimen of the material from which the relevant part is manufactured The size of the specimen shall be greater than 60 mm × 60 mm and with a thickness equal to the minimum thickness as measure for the relevant part NOTE A switch is considered to be practical for testing if a 15 mm diameter circle can be inscribed within the surface to be tested Compliance is checked with one new sample using the glow wire test of IEC 60695-2-11 at the glow wire temperature of minimum 650 °C The test specimen is considered to have passed the glow-wire test if flames or the glowing of the test specimen extinguish within 30 s after removal of the glow wire and there is no ignition of the layer of wrapping tissue If there is no flame or ignition, this shall be reported 22 Resistance to rusting This clause of Part is applicable 23 Abnormal operation and fault conditions for electronic switches Replacement Not applicable, except as follows Switches shall be constructed so that the risk of electric shock as a result of abnormal condition is prevented Compliance is checked by carrying out the tests described in 23.1.1.1 and 23.1.1.2 for circuits where circuit analysis shows an electric shock hazard to exist When tested, the switch shall be installed in a test circuit as shown in Figure 18 The load conditions are as follows: • for electronic switches for which no thermal current is declared, the tests are carried out with rated current and duty type; – 16 – BS EN 61058-2-6:2016 IEC 61058-2-6:2016 © IEC 2016 • for electronic switches for which a thermal current is declared, the tests are carried out with the specified thermal current and duty type; • for electronic switches for a specific end application, the tests are carried out in or together with the appliance NOTE Circuits below 15 W are generally considered not to represent a risk of electric shock NOTE These load conditions are a subset of the requirements from 16.3.3 24 Components for electronic switches This clause of Part is not applicable NOTE Specific requirements for components are covered by the end product standard 25 EMC requirements This clause of Part is not applicable NOTE This clause is covered in the end product standard BS EN 61058-2-6:2016 IEC 61058-2-6:2016 © IEC 2016 – 17 – Annexes The annexes of Part are applicable, except as follows: Annex F (informative) Switch application guide This annex of Part is not applicable Annex H (informative) Flat quick-connect terminations, method for selection of female connectors This annex of Part is not applicable Annex N (normative) Altitude correction factors This annex of Part is not applicable Annex U (normative) Dimensions of tabs forming part of a switch This annex of Part is not applicable Annex V (informative) Requirements and tests for resistance to abnormal heat for unattended appliances This annex of Part is not applicable BS EN 61058-2-6:2016 IEC 61058-2-6:2016 © IEC 2016 – 18 – Bibliography The bibliography of Part is applicable, except as follows: Addition: IEC 60745-1, Hand-held requirements motor-operated electric tools – Safety – Part 1: General IEC 62841-1, Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery – 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